Nominal diameter | 15 | 20 | 25 | ||
Max flow Q4 (m3/h) | 3.125 | 5 | 7.87 | ||
Nominal flow Q3 (m3/h) | 2.5 | 4 | 6.3 | ||
Transitional flow Q2 (m3/h) | 0.05 | 0.08 | 0.2 | ||
Min flow Q1 (m3/h) | 0.031 | 0.05 | 0.07 | ||
Measuring range | R80 (Q3/Q1) | ||||
Accuracy class | Class B | ||||
Temp. Class | T30 | ||||
Power supply | DC 3.6V | ||||
Battery life | ≥ 6years | ||||
Base table material | Brass | ||||
Working temperature | 0.1~30 ℃ | ||||
Working pressure: | ≤1.0MPa | ||||
Pressure loss | ≤0.063MPa | ||||
Protection grade | IP68 | ||||
Installation environment: | Class B, indoor | ||||
Relative Error | Maximum allowable error Q1 – Q2 ± 5%. Maximum allowable error Q3 – Q4, water temperature ≤30°, max permissible error ± 2%; water temperature >30°, max permissible error ± 3%. |
Nominal caliber | Length L | Length L | Width B | Height H1 | Height H2 | Connection thread | ||||||
mm | d | D | ||||||||||
15 | 258 | 165 | 90 | 120 | 200 | R1/2 | G3/4 | |||||
20 | 299 | 195 | 90 | 120 | 200 | R3/4 | G1 | |||||
25 | 345 | 225 | 90 | 120 | 200 | R1 | G1 1/4 |